Safety fluid lamp and heater.



G. W. BROWN.

SAFETY FLUJD LAMP AND HEATER.

- APPLICATION FILED JUNE 3.1918.

1,297,650. Patented Mar. 18,1919.

2 SHEETSSHEET I LA m? a! 2c,

a. w. BROWN.

SAFETY FLUID LAMP AND HEATER.

APPLICATION FILED JUNE 3|19I8.

Patented Mar. 18,1919.

2 SHEETS-SHEET 2- UNITED STATES PAT NT oEEio GEORGE w. BROWN, orPORTLAND, MAINE, ASSIGN'OR T SUSAN. J. DODGE, OF. 7

NEW CASTLE, MAINE. V

SAFETY FLUID LAMP AND HEATER.

Application filed June 3, 1918. Serial No. 237,860.

T 0 all whom it may concern:

, Be it known that I, GEORGE W. BRoWN, a citizen of the United States,residing at Portland, in the county of Cumberland and State of Maine,have invented certain new and useful Improvements in Safety Fluid 'Lampsand Heaters, of which the-following is a specification.

This inventlon relates to improvements n fluid lamps and heaters. Forconveniencein the description reference will be had only to lamps, itbeing understood however that it is applicable to either. It isespecially designed to provide a device of this k nd which is simple andsanitary in construction and safe in use, the device when provided withmy improvements being such that the light is automatically extinguishedwhenever the lamp is accidentally upset.

In the drawings herewith accompanying and making a part of thisapplication, Figure 1 is an elevation partly in section of a lampshowing my improvement applied thereto; Fig. 2 is a detail sectionalview showing thewick operating rod and my improved means for operatingit; Fig.- 3 is a detail sectional view of the mechanismwhich disengagesthe wick operating rod and Fig. 4 is a detail plan view of the springlock which holds the wick operating rod from rotating under certainconditions. 7 Same reference characters indicate like parts in theseveral figures.

In said drawings 1 is a fluid tank, 2 a globe, 8 a wick, 4 a wickcarrier adapted to be raised and lowered by a rotating rod 5 having oneor more ratchets 6 adapted to take into holes or depressions 7 in thewick carrier. The wick is arranged outside ofa cylinder 8. The lamp hasa vertically movable extinguisher 8 located above the end of cylinder 8and wick 3. The extinguisher may be of the well known type, restingloosely upon the wick, and falling with it until arrested by thecylinder, thus shutting out the air, and extinguishing the light.Outside the wick carrier is a U-shaped cylindrical cup-shaped member 9havng threaded connection with the top of the tank as seen at 11. Theglobe rests in a support 10 which is loosely supported on the outer sideof member 9. Attached to support 10, one on each side, are arms 12. Thedevice is supported on legs 13. Three of these legs extend upwardlyabove the globe and two of turned until the arms 12 rest on brackets14,.

leaving free access to the wick. The fourth leg is merely attached toband 13 which supports the tank and terminating below the 1 globeaffords an opening for its removal,

when desired.

Passing now to the mechanism whichis designed to render the lampsanitary and safe, the wick operating rod is provided with a hand wheel20 on its outer end inwhich is a coil spring 21, one end secured toa'fixedbearing 22 secured to the tank and the other to the wide flangeof the wheel. The rod is provided with a ratchet 19 fixedly securedthereto. Secured to the top of the tank beneath ratchet 19 is a spring23 carrying a pawl 2 1 located to engage ratchet 19. It will be evidentnow that when the rod is rotated to raise the wick, spring 21 will bebrought under tension tending to rotate the rod to lower the wick butwill be inoperative for this purpose until thepawl is released from theratchet 19 by any means when the wick will be automatically andinstantly returned down and the light extinguished. One of the importantadvantages of this arrangement isthat the wick is carried below the wall9 and thus prevents the oil or fluid from oozing over into the outsidelamp parts. It is also noted that this provides a very convenient meansof extinguishing the light.

In devices of this character which are sometimes of considerable sizeand which are usually allowed to rest upon the floor or table or to besuspended from hooks there is often danger of the device falling orbeing tipped over and setting fire to the buildings. To obviate thisdanger the tank is provided with a hollow cylinder 15 extending entirelythroughlit and in cylinder 15 a vertically movable rod 16 is mounted.This rod is normally held down by a spring 17 inserted between thebottom of the tank and a nut 18 on the end of the rod, which nut may beadjustable by having threaded engagement with the rod. The upper end ofrod 16 is provided with a lug 25 located in the path of the free end ofspring 23 and for convenience the rod may pass through an opening 23 inthe spring. It is noted that when the rod is raised, as is the case whenraised until the lug 25 is out of engagement with spring 23 and spring27 is under ten-' sion due to the weight oi the lamp resting upon it. Itwill now be evident that when the lamp is raised or tipped laterally inany direction the tension of spring 17 will force the rod down until thedog 25 engages spring 23, in turn forcing the sprin 23 down until pawl24 is disengaged ratchet 19, sprin 21 then rotating the rod whichoperates t e wick to force the wick downwardly and thus extinguish thelight.

Devices of this character being portable and being frequently raised andcarried from place to place it is important that means be providedwhich, when it is designedly lifted and carried about, will prevent thelight from being extinguished. To provide for this, the handle 26 isrotatably mounted in the top of the legs and in ears 28 secured to aloose band 29 located above the globe On one side the handle extendsthrough a vertical slot 27 in the legs. The

top of rod 16 is connected to the bail by a cable 30. Any convenientmeans may be employed for connecting the cable. to the top of the rod, astirrup '81 being shown. When thebail is not in use the cable isinoperative, but when the bail is used to support the lamp it rises inthe socket until the stirrup andcable raisevor hold up the rod againstthe. actionofspring 17 permitting the lamp to be held up by the bailwithout extinguishing the light.

I claim:

1. In a device of the character described, a fluid tank, a wick, a wickcarrier, a light extinguisher, means under tension tending constantly toturn the wick carrier. down, means for yieldingly holding thewickcarrierlinoperative, and means dependent upon the weight of the deviceto prevent releasing said holding means.

2. In a device of the character described, a fluid tank, a wick, a wickcarrier, a light extinguisher, means under tension tending constantly toturn the'wick carrier down, means'for yieldingly holding the wickcarrier'inoperative, means dependent upon the weight of the device toprevent releasing said holding means,.an'd' means actuated by thebailywhen the devicev is liftedthereby,

rom

tached to the tank and 'carryingfa pawl adapted normally to engage saidratchet and lock said' rod against rotation, a vertically reciprocatingrod extending through the tank, a lug on the top of the rod in the" pathof said first mentionedspring, and a coil spring inserted between thebottom of the tank and a nut on said rod,'the tension of the spring onsaid rod, when free, tending normally to hold the rod down to cause saidlug to release said pawl from theratchet on the wick operating rod.

4,. In a device of the character-described,

a fluid tank, a Wick, a wick carrier, a light extinguisher, a rotatmgrod provided with) ratchets adapted to operate the wick carrier andwick, a cup-shaped hand wheel on the end of said rod,'a spring, one endattached to the bearing and the other to said .85 the turning of the rodto raise the wick carrier, a ratchet fixed on said rod, a springattached to the tank and carrying a p'awl' adapted normally to engagesaid ratchet and lock said rod against rotation, a vertig callyreciprocating rod extending through;

wheel, arranged to be set under tension by the tank, a lug onjthe top ofthe rod'in the f path of said first mentioned spring, a coil,, I springinserted between the bottom 'ofthe tank and a nut onsaid rod, thetension of the spring on said rod, when free, tending normally to holdthe rod down to cause said lug fto releaseisaid pawlfrom the ratchet onthe wickoperating rjod, a bail for supporting the lamp, and means,actu-l ated by the bail, when'the" lamp is supjf ported thereby,forholding said vertically engagement with reciprocating sald lockingspring."

In testimony rod out of GEORGEW, Beown;

whereof I aflix my signature. I

Copies of .this patent maybe obtained for fiv e'icents each, byaddressing the Commissioner of Patents, I

I i Washington, ncg

